Color change in hcl plus naoh equals nacl plus H2O?

Answer 1

The products are the chemicals that result from the reaction, NACl and H20 (salt and water).

The reactants are the checmicals that are combined: HCl and NaOH (hydrochloric acid and sodium hydroxide).

Answer 2

The reaction below is an acid-base reaction. HCl + NaOH --> NaCl + H2O

The solutions of each substance, both reactants and products, are colourless, so there is no colour change observed in this reaction. However, if a pH indicator is used, a colour change is observed.

A pH indicator changes colour depending on the pH of the solution, and thus the solution changes colour. If the solution is acidic and Universal Indicator is used, it is red, orange or yellow, depending on the pH. If it is alkaline, it is blue or violet. If, however, it is neutral, neither acidic nor alkaline, it is green.

If we add Universal Indicator to NaOH, sodium hydroxide, it turns blue. If we add it to HCL, hydrochloric acid, it turns red. If the HCl and NaOH are present in equal amounts, the two solutions will mix to give a neutral solution, which turns the Universal Indicator green.

Answer 3

When hydrochloric acid (HCl) and sodium hydroxide (NaOH) react, they form sodium chloride (NaCl) and water (H2O). This reaction is neutralization and does not involve a color change. Color change in a chemical reaction generally indicates a change in the chemical composition.

Answer 4

An acid-base reaction. It can also be called a neutralization reaction.